Nettetopen 和 close 都涉及到对文件描述符的操作，由于 close 函数更加简单，就从 close 为入口进行分析。 下面是 close 函数的内部系统调用： SYSCALL_DEFINE1 (close, unsigned int, fd) { int retval = __close_fd (current->files, fd); ... return retval; } close 调用了 __close_fd 函数, 该函数定义在 /fs/file.c 文件中，下面是简化后的代码： Nettet30. mai 2024 · The point was to inside the sigint_handler () function, it would close the file descriptor and the terminate the program. However, I can't do this. Is there a better way to get the desired result? Or is it okay to terminate the program without closing the file descriptor? If anyone can help me understand this better I would greatly appreciate it. c
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Nettetfor 1 time siden · CNN —. Oscar-winning actor Jamie Foxx remains hospitalized in Georgia and under observation, a source with knowledge of the situation told CNN. “They are running tests and still trying to figure out what exactly happened,” the individual said. Foxx has been in Atlanta, Georgia, filming the Netflix movie, “Back in Action.”. Nettet9 timer siden · U.S. officials have grown increasingly dissatisfied with Hungary’s approach to the war in Ukraine, criticism of war-related sanctions on Russia and continuing close ties with Moscow, which have given Orban a reputation as the Kremlin’s closest ally in the European Union.. Increasing anti-American rhetoric in Hungary’s government-tied … bar pryzmat
Motorcyclists shot in separate locations along I-45 North khou.com
Nettet29. sep. 2016 · 函数原型: int close (int fd) 参数：fd文件描述符 函数返回值：0成功，-1出错 3. read（）函数 功能描述： 从文件读取数据。 所需头文件： #include 函数原型： ssize_t read(int fd, void *buf, size_t count); 参数： fd ： 将要读取数据的文件描述词。 buf ：指缓冲区，即读取的数据会被放到这个缓冲区中去。 count ： 表示调用一 … NettetRead Read() tells the operating system to read "size" bytes from the file opened in file descriptor "fd", and to put those bytes into the location pointed to by "buf".It returns how many bytes were actually read. Consider the code in r1.c.When executed, you get the following: UNIX> cat in1 Jim Plank Claxton 221 UNIX> r1 called read(3, c, 10). Nettet2 timer siden · Updated: 2:02 PM CDT April 14, 2024. MONTGOMERY COUNTY, Texas — At least four motorcyclists were shot Friday along I-45 North, authorities said. Sometime around 11:30 a.m., at least one ... suzuki sv 650 dominator